Application and distribution of electromotive power for use in starting machinery, &amp;c.



G. W'. MASCORD. APlLIGATION AND DISTRIBUTION OF ELEUTROMOTIVE POWER FOR USE-IN STARTING MACHINERY, km.

APPLICATION FILED JAN.1Z, 1907. RENEWED DEC.134 1909.

."i,033,257. Patented July 23,1912.

3 SHEETSSHEET 1.

G. W. MASCORD. APPLICATION AND DISTRIBUTION OF ELEGTROMOTIVE POWER FOR USE IN STARTING MACHINERY, 6w. APPLIGATION FILED JAN.12, 1907. RENEWED DEO.18, 1909.

Patented July 23; 1 912.

a sHBBTsrsHEET 2.

. G. W. MASCORD. APPLICATION AND DISTRIBUTION OF ELEOTROMOTIVE POWER FOR USE IN STARTING MACHINERY, &c.

APPLICATION FILED JAN. 12, 1907. RENEWED D3013. 909.

1 ,033,257; Patented July 23, 1912.

3 SHEETS-S HBET 3.

i. y ZZZL GEORGE 'VUILLEAM MASCOR-D, OF BARNES, LONDON, ENGLAND.

APPLICATIGN ANL' DISTRIBUTION 9F ELECTRGIE'I OTIVE LG'WER FOB'UEE IN STARTING AGHINERY, o.

,ossesr.

Application filed Jenuar'y 12. 1907, Serial No. 352,050. Renewed December 7.8, 1999.

To (all tC/l-OT/L it mag, concern i Be it known that l. Gnonon KVILLIAM li iixsoonn. a. subject 01"" the King of Great Britain and Ireland. residing at 5 T he Crescent, Chores Road, Barnes. London S. T, England, engineer, have invented certain new and useful irprovements in and relatin to the application and di tribntion of elertromotive power particularly for use in starting machinery and for such and similar purposes, oi which the following is a specification.

T his invention relates to the application and distribution of motive power particularly where eleetro-motors are en'iployed the source of motive power.

The invention has for its special object to provide means for starting and controlling the motor and the machine. or mechanism driven by the motor at one or more points or by the (operation of one or more operating lovers. to providenncu ns for conveniently putting :1 broke upon the driven mechanism or machine on the retraction of the operating lever and for Simultaneously stopping the electroonotor, and generally to provide operating and controlling mechanism that permits ot the effective and convenient control of the motor and machine from one or more points.

The invention also has for its object to provide for the utilization of two eleetromotors with unitdriving sets in such manner that both electro-motors may be operated simultaneously, or the unit sets disconnected so that each 'set may be operated independently at diii erentspeeds, or one operated while the other is at rest, such an arrangement being specially applicable to printing press plants.

According to the invention I provide clutch operating niec' anism consisting of an operating lever provided with means for successively clutching the slow speed shaft and the main motor shaft. According to the invention 1 pro ide this operating lever to have the additional function of starting the motor, and for this purpose l: provine upon the quadrant of the operating lever starting switch, which, according to the inven tion. ispret'ersbly connected. with a separate automatic motor starter, by which the enrrent may be slowly, switched on, for setting motor into operation.

Specification. of Letters Patent.

According to the invention inorcover I,

aterntetiv 23, 1912.

Serial 3H0. 532,905.

provide the main clutch which e'tlects the direct connection for normal speed to operate also a brake, this function of'the clutch being realized onthe retraction of the operating lever in the manner herein after more particularly described. I

According to the invention i provide the clutch operating lever to have movement rearward of its normal stationary position. and I provide the operating lever in two parts, one part being pivoted to other it ion a conn'non pivotal center concentrio with that of the quadrant base fitting, he handle portion being capable of being disconnected from the second portion and serving to operate a switch to stop or start the motor in the rearward movement that i. permitted'to it. The respective parts of the operating lever are however, according to the invention, provided with suitsb'lemeans for their connection so that they be simultaneously moved. and so that, in the retraction of the operating lever rearward of the normal stationary position, not only will the switch be operetedttor stopping the motor, but the clutch mechanism may be operated to act it broke for the quick stopping of the machine, this latter operation being performed first in sequence and the stopping of the motor by the further rearward movement of the operating lever. It will be understood however, that by such an arrangement the part of the operating lever to which the clutch opera? ing mechanism is connected may henrrested in its rearward movement at the station ary position when it is not desired to 'put on the brake, .or where the main clutch is not provided to have this fnnetiom. According to the inventionmoreover, instead of providing the shunt contacts upon the quadrant base part, I provide the shunt contac s upon a separate quadrant or base, and I connect the separate contact lever or switch with the main clutch operating part of the operating lever provided. as hereinbefore described.

According; to the invention also I provide each unit set with a separate electro-motor, he mot-or shattsbeing; advantageously in line with each other and connected together by shutting wh'ch cspable of being dis-- conz'iected h s "itch, while it slow speed shaft of each set is also pro. ed in line and is capable of being connected or disconnected as required according as to whether the respective unit sets are to be coupled together for simultaneous operation by each of the motors or be se iarately driven by each motor.

The invention is illustrated in the accom- Tanying. drawings, in which- In carrying the invention into effect, in the manner illustrated in the accompanying d 'awing I provide a quadrant base a upon which the clutch operating lever is pivoted and this operating lever I provide in two parts 0 (Z which are pivoted. upon the same center. the handle portion (Z advantageously being loosely mounted upon a spindle 0 while the second portion 0 which is mounted adja cent to it, is keyed or fixedlymounted upon the said spindle. The first part d is provided. with a handle f and the second part c is connected to it, so that it may be moved by means of the first or handle part (Z of the lever. The second portion 0 of the lever it will thus be understood gives movement to the spindle etc which is also connected a lnain clutch operating mechanism and the link it by which the second operating set, when such is provided, is connected. On the spindle c is also mounted a guide piece 1 in which is guided one arm of a double armed lever 2, the other arm of the latter being connected to a. lover a of the brake mechanism (Fig. 3) by means of a rod 3.

The first or handle part (Z of the lever is provided as hereinbctore -described to have a movement rearward of the stationary position assumed by the second or fixed portion 0 of the lever, and upon the quadrant 0 immediately behind this stationary position a motor slarter'i isprovided having two operating contacts j 7; which are disposed in the line of movement of an arm or contact piece Z provided upon the handle part (l of the lever. These contact pieces k are advantageously connected to the opposite ends of a switchlevcr .m. centrally. pivoted so that on the movement of the handle portion d of the lever from-the extreme left hand position to the rightp for example, the first contact '1'. which was depresscd during the previous movement of retraction of the hand lever, is ridden over, while the next. contact 7.? which is in its upper position is depressed so as to complete the solenoid circuit n of an automatic starter o by which the motor may be started.

After the handle portion (Z of the lever has passed the motor starter it comes into position in alineinent with the second or fixed portion 0 of the lever with which it. engages advantageously by means (it a thumb screw 1: upon one side or by means ot a pin engaging with the'edge of the lever which is the rear edge with reference to the forward movement to be given to it. (in the further movement of the handle portion of the lever it will be understood that the slow motion shaft clutch disconnected and the main clutch gradually put into engage ment until a position is assumed by the lever corresponding to the full normal motor speed. On the further movement of the le ver, resistances are put in circuit for the shunt control of the motor tield. 13y such a movement of the operating leve the motor 8 is set in rotation and the machine is start ed. ing lever the main shaft clutch is lirst disconnected and the (brake) clutch brought into such a position that it acts to a certain extent, and on the further return movement of the operating lever, the machine is brought to rest.

The clutch which acts as a brake is constructed in the following n1anncv:- lh'e -ha'tt ot' the electrounotor is connected to one clutch halt, in which are rigidly mounted a number of disks q. into the right hand side of the clutch .asing 0 projects the end of the shalt of the printing press. On this shaft end is mounted a sleeve which can be moved batkwardand torward thereon, and which rotates therewith, disks 6 being rigidly mounted on the sleeve 0'. In the casing are rigidly mounted a number of disksd. By moving the lever portion v the disks 7/ are brought into engageim-nt either with the disks rZ or the disks 5 thus coupling the press shaft with the motor shaft or b aking the press shaft.

The part c of the operating lever can be held in a stationary position either by the pin M (Fig. 1) which is acted upon by a spring and drawn back by hand, said pin on the return movement of the operating lever, automatically projecting into a hole in the segmental. base (I. The portion rot the operating lever is extended beyond the spindle 6 and is connected by means oil a link r to a shunt control lever 51 so that in the movement of the operating lever forward from the position cm'responding to the full normal motor speed the shunt control lever K; will contact with the shunt control contacts r whereby resistances are put into circuit tor the reduction of the motor held to an extent determined according to the movement of the operating lever which is limited in its movement at the. position correspomling to tail speed.

I prefer to provide a so called automatic ()n the return movement (it the opcratbut;

now released by hand and the electromotor is brought to rest by oymning the switch by means of the piece Z of the lever portion (Z depressing the contact j on the farther moven'lent to the leittot the said lever portion lVhat I claim as my invention and desire to secure by Letters Patent, is

1. The combination with a driven memher and. a motor for operating the same, eluteh meeh'anism, a cam lever for operating: the same, an automatic motor starten a switch controlling the same whereby the current may he slowly switched on for startinf; the motor into operation, said switch being actuated by the operating lever.

2. The combination with 1notor,aswiteh controlling the same, resistances; controlling the motor tiehl, a (lriren element, elnteh mechanism connected therewith, and an operating lever comprising two parts, one part operating the switch and clutch 1neehanisin while the other part operates the re sistanee of the motor field.

3. The combination with a driven elemeet. and a motor for operating the same clutch meehanism, resistances controlling the motor iehh an automatic motor starter a switch controlling the same, and an operating lever eomprising two parts, one part operating the clutch mechanism aml th switch while the other part controls the resistances for the motor field.

Ti.- In eombiinition with a tll'lVtll element {Hill a motor for operating the more, of clutch zn'ieehanism ineana tor Martin; the motor, means for controlling' the motor liehl and an operating lever comprising two parts, one part o 'mrating the ehiteh nierhanism and the means for starting the motor while the other part operates the meane for controlling the motor field.

In testimony whereof I have hereunto signed my name to this speriliration in the presence of two subscribing witnessee.

GEORGE lv'lLLlAM fv'i'iiSGUlll).

Witnesses Fnnmamen Conmxs, H. D. Jameson,

eagles of this patent maybe obtained for five cents each, by addressing the Commissioner of Washington. 1). G. 

